CVE-2017-7228

Public exploit code

Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.

• Xen - Broken Check in 'memory_exchange()' Permits PV Guest Breakout2017-04-11 · local · multiple · Verified

Impact

An issue (known as XSA-212) was discovered in Xen, with fixes available for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix introduced an insufficient check on XENMEM_exchange input, allowing the caller to drive hypervisor memory accesses outside of the guest provided input/output arrays.

Affected products

Weakness classification

References

• NVD record
• CVE.org record
• http://openwall.com/lists/oss-security/2017/04/04/3
• http://www.debian.org/security/2017/dsa-3847
• http://www.securityfocus.com/bid/97375
• http://www.securitytracker.com/id/1038223
• http://xenbits.xen.org/xsa/advisory-212.html
• https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
• https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
• https://www.exploit-db.com/exploits/41870/
• http://openwall.com/lists/oss-security/2017/04/04/3
• http://www.debian.org/security/2017/dsa-3847
• http://www.securityfocus.com/bid/97375
• http://www.securitytracker.com/id/1038223
• http://xenbits.xen.org/xsa/advisory-212.html
• https://github.com/QubesOS/qubes-secpack/blob/master/QSBs/qsb-029-2017.txt
• https://googleprojectzero.blogspot.com/2017/04/pandavirtualization-exploiting-xen.html
• https://www.exploit-db.com/exploits/41870/